The origin of dstgsgs is unknown, and the name appears to be a string of random keyboard letters rather than a title from a film, game or show. Short nonsense clips like this spread through user generated soundboards, where a meaningless name and a one second runtime make them easy to share as in jokes. It stays in use because it needs no context, works over almost any failed, awkward or confusing moment, and can be dropped into edits, chats and streams without explaining a reference.